Hi Shar,
You could look at your situation in reverse and have fun fouling the system up by rigidly complying with regulations...You could state your case as
something similar to the 'Homeless voter special registration':

"..You can still register to vote even if you have no permanent address using a Declaration of Local Connection. A homeless person may register
at the address of, or which is nearest to, a place where they commonly spend a substantial part of their time (whether during the day or night). This
address, for example, may be a park bench, a bus shelter or the doorway of a High Street store. Declarations of Local Connection can be made at any
time throughout the year and are valid for 12 months. We will send a renewal form after 9 months.."
Source
As no doubt similar 'special circumstances' will be granted for the ID card as poll cards you could be as 'beaurocratically-pedantic' as possible
and state your address by hotel-room, or if you are travelling overnight from one location to another and technically in limbo as 'In a car on the
M62, Jct 12' or something equally obscure....don't get mad, get even!
If you ever happen to get stopped and queried about your 'address' it will create so much of a headache in tracing the paper trail that the
civil-service will regret ever asking...just be polite and be as 'helpfully obstructive' as possible.
For a better idea on what I'm advocating, have a look at the antics of one of my heroes,
Mark Thomas,
and his 'Mass Lone Protest' where he aims to tie the Met. Police up with so much paper that the law on requiring a licence to peaceful protest is
repealed
[edit on 20-5-2007 by citizen smith]